Mersana Therapeutics, Inc. (NASDAQ:MRSN) Q4 2019 Results Conference Call February 28, 2020 8:00 AM ET Company Participants Sarah Carmody - Executive Director, IR and Corporate Communications Anna Protopapas - CEO Brian DeSchuytner - SVP, Finance and Product Strategy Conference Call Participants Jonathan Chang - SVB Leerink Boris Peaker - Cowen Debjit Chattopadhyay - H.C. Wainwright Jessica Fye - JP Morgan Mike Ulz - Baird David Nierengarten - Wedbush Securities Operator Good morning, and welcome to Mersana ...